For a linux software RAID using madadm, does adding a harddrive and growing onto the RAID, destroy the data that's already on the RAID or does it preserve everything?
No, if you add a new drive and grow, you should not loose your data.
If you don't have a tested backup already you should make one. While nothing should go wrong there is always a small chance that something will go wrong.
Sign up using Google
Sign up using Facebook
Sign up using Stack Exchange
3 years ago